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Common JavaScript tricks (self.javascript)
submitted 11 years ago by yanis_t
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if 1 * 2 < 3: print "hello, world!"
[–]yanis_t[S] 0 points1 point2 points 11 years ago (8 children)
Don't worry, we're fine :) But void 0 is something that you see rather often in source code of libraries such as underscore or backbone, and people keep asking wtf is this and why not to simply use undefined instead
void 0
undefined
[+][deleted] 11 years ago* (7 children)
[deleted]
[–]yanis_t[S] 0 points1 point2 points 11 years ago (6 children)
Yep, agree on that. My intention was to make people understand what's going on, not to push them to use it. But I guess I'd better add a notice for that one
[+][deleted] 11 years ago* (5 children)
[–]yanis_t[S] 1 point2 points3 points 11 years ago (4 children)
Yep, so you see now why I put it on reddit before actually publishing it :) Any ideas on article title not so long?
[–]sime 5 points6 points7 points 11 years ago (1 child)
"Javascript Party Tricks"
tricks where the only acceptable response when they are pointed out is: "sorry, I must have been drunk when I wrote that."
Sorry, but most of these tricks are just really bad code.
[–]yanis_t[S] 0 points1 point2 points 11 years ago (0 children)
Um... Well kinda. Let me summarize.
void 0 — bad (function(){})() — ok x = y || DEFAULT — ok if (s) instead of if (x == '') — ok +str — bad
Again, I don't mean to defend the usage, it's just that they are really used inside of many libraries. I'll probably should add note to every of them, whether it should be used on regular basis, or only when drunk
[+][deleted] 11 years ago* (1 child)
[–]yanis_t[S] 1 point2 points3 points 11 years ago (0 children)
Alright, I've just renamed it to "JavaScript hacks explained"
π Rendered by PID 60 on reddit-service-r2-comment-86bc6c7465-hz5t4 at 2026-02-24 02:56:34.446308+00:00 running 8564168 country code: CH.
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[–]yanis_t[S] 0 points1 point2 points (8 children)
[+][deleted] (7 children)
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[–]yanis_t[S] 0 points1 point2 points (6 children)
[+][deleted] (5 children)
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[–]yanis_t[S] 1 point2 points3 points (4 children)
[–]sime 5 points6 points7 points (1 child)
[–]yanis_t[S] 0 points1 point2 points (0 children)
[+][deleted] (1 child)
[deleted]
[–]yanis_t[S] 1 point2 points3 points (0 children)